Ni and Co-based bifunctional electrocatalysts supported on TiO2@C for oxygen evolution and reduction reactions

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade do Porto-
Autor(es): dc.contributorUniversity of Granada-
Autor(es): dc.contributorUniversité d'Orléans-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversity of Malaga-
Autor(es): dc.contributorUniversity of Cadiz-
Autor(es): dc.contributorUniversidad de Concepción-
Autor(es): dc.contributorUniversidad Autónoma de Chile-
Autor(es): dc.creatorFernandes, Diana M.-
Autor(es): dc.creatorAbdelkader-Fernandez, Victor K.-
Autor(es): dc.creatorFayad, Ali-
Autor(es): dc.creatorAnia, Conchi O.-
Autor(es): dc.creatorPraxedes, Fabiano R.-
Autor(es): dc.creatorLanfredi, Silvania-
Autor(es): dc.creatorRodríguez-Castellón, Enrique-
Autor(es): dc.creatorRodríguez-Aguado, Elena-
Autor(es): dc.creatorHernández-Garrido, Juan C.-
Autor(es): dc.creatorQuintana-González, Juan J.-
Autor(es): dc.creatorPoon, Po S.-
Autor(es): dc.creatorMatos, Juan-
Data de aceite: dc.date.accessioned2025-08-21T20:41:45Z-
Data de disponibilização: dc.date.available2025-08-21T20:41:45Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-11-30-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.electacta.2024.145030-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/304286-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/304286-
Descrição: dc.descriptionIn the search for affordable, ecofriendly, and sustainable catalysts for energy-related processes, series of Ni and Co-based bifunctional hybrid electrocatalysts supported on TiO2@C were prepared and studied in the oxygen evolution (OER) and oxygen reduction reactions (ORR). The hybrid TiO2@C supports were prepared using three biomass precursors: furfural, chitosan and saccharose. The nature and dispersion of the metallic phases on those supports was evaluated as a function of the biomass-derived precursors. The prepared materials showed electrocatalytic activity towards ORR and OER reaction, being more active for the latter. Despite a lower performance than Pt/C benchmark, these materials are clearly at much lower costs. The long-term stability and performance of the catalysts were also performed. The number of electrons involved in both processes was determined and a mechanism is proposed for the understanding of the mechanism of reactions using the present materials. It can be concluded that the Ni and mainly Co-based electrocatalysts show a remarkable potential for use as alternative catalysts in fuel cells-related reactions.-
Descrição: dc.descriptionLAQV-REQUIMTE Departamento de Química e Bioquímica Faculdade de Ciências Universidade do Porto, Rua do Campo Alegre s/n-
Descrição: dc.descriptionInorganic Chemistry Department Sciences Faculty University of Granada, Av. Fuentenueva s/n, Granada-
Descrição: dc.descriptionCEMHTI CNRS (UPR 3079) Université d'Orléans-
Descrição: dc.descriptionDept. Chemistry and Biochemistry São Paulo State University (Unesp) School of Technology and Sciences, SP-
Descrição: dc.descriptionInorganic Chemistry Department Faculty of Science Instituto Interuniversitario de Investigación en Biorrefinerías I3B University of Malaga-
Descrição: dc.descriptionDept. Materials Science and Metallurgy Engineering and Inorganic Chemistry Faculty of Sciences University of Cadiz-
Descrição: dc.descriptionUnidad de Desarrollo Tecnológico (UDT) Universidad de Concepción, Barrio Universitario s/n-
Descrição: dc.descriptionUnidad de Cambio Climático y Medio Ambiente (UCCMA) Instituto Iberoamericano de Desarrollo Sostenible (IIDS) Facultad de Arquitectura Construcción y Medio Ambiente Universidad Autónoma de Chile-
Descrição: dc.descriptionDept. Chemistry and Biochemistry São Paulo State University (Unesp) School of Technology and Sciences, SP-
Idioma: dc.languageen-
Relação: dc.relationElectrochimica Acta-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectFuel-cells-
Palavras-chave: dc.subjectNiCo-based electrocatalysts-
Palavras-chave: dc.subjectOER-
Palavras-chave: dc.subjectORR-
Palavras-chave: dc.subjectTiO2@C supports-
Título: dc.titleNi and Co-based bifunctional electrocatalysts supported on TiO2@C for oxygen evolution and reduction reactions-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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